Yes, I've looked at this as well.
Some conversations have inherent [unmentioned] bonuses.
e.g. Woman in bath -1 (charisma)
Crowd hustler +3 (charisma and reason)
Orc with armor +2 (reason, I think)
If you mouse over your total in the mini-game (top right) it'll break down the numbers. Very sneaky, really, but not a bug.Some kind user explained it:
Y
The number of points you get is based on your Charisma. More Charisma = more points per win.
The number is further modified by what option you chose (charm, intimidate, reason). One of these is the right choice, and increases your number. One is wrong, and decreases. One is neutral. This choice is different depending on who you're talking to, and the context of your conversation. If your perception is high enough, the game will tell you which option is right/wrong/neutral.
I missed this past the beta ~ so Charisma is the #, and Intimidate / Charm / Reason is the strategy! Each Charisma game has a (hidden) mod to each depending on the preferred tactic. e.g. Woman in the bath does not respond well to charm.
This makes a
lot more sense now.
It also explains why some conversations were getting random -/+ to them.